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author | Dmitry Torokhov <dtor_core@ameritech.net> | 2006-06-26 09:31:38 +0400 |
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committer | Dmitry Torokhov <dtor_core@ameritech.net> | 2006-06-26 09:31:38 +0400 |
commit | 4854c7b27f0975a2b629f35ea3996d2968eb7c4f (patch) | |
tree | 4102bdb70289764a2058aff0f907b13d7cf0e0d1 /include/asm-arm/arch-netx/uncompress.h | |
parent | 3cbd5b32cb625f5c0f1b1476d154fac873dd49ce (diff) | |
parent | fcc18e83e1f6fd9fa6b333735bf0fcd530655511 (diff) | |
download | linux-4854c7b27f0975a2b629f35ea3996d2968eb7c4f.tar.xz |
Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'include/asm-arm/arch-netx/uncompress.h')
-rw-r--r-- | include/asm-arm/arch-netx/uncompress.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/include/asm-arm/arch-netx/uncompress.h b/include/asm-arm/arch-netx/uncompress.h new file mode 100644 index 000000000000..f89434547102 --- /dev/null +++ b/include/asm-arm/arch-netx/uncompress.h @@ -0,0 +1,76 @@ +/* + * include/asm-arm/arch-netx/uncompress.h + * + * Copyright (C) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* + * The following code assumes the serial port has already been + * initialized by the bootloader. We search for the first enabled + * port in the most probable order. If you didn't setup a port in + * your bootloader then nothing will appear (which might be desired). + * + * This does not append a newline + */ + +#define REG(x) (*(volatile unsigned long *)(x)) + +#define UART1_BASE 0x100a00 +#define UART2_BASE 0x100a80 + +#define UART_DR 0x0 + +#define UART_CR 0x14 +#define CR_UART_EN (1<<0) + +#define UART_FR 0x18 +#define FR_BUSY (1<<3) +#define FR_TXFF (1<<5) + +static void putc(char c) +{ + unsigned long base; + + if (REG(UART1_BASE + UART_CR) & CR_UART_EN) + base = UART1_BASE; + else if (REG(UART2_BASE + UART_CR) & CR_UART_EN) + base = UART2_BASE; + else + return; + + while (REG(base + UART_FR) & FR_TXFF); + REG(base + UART_DR) = c; +} + +static inline void flush(void) +{ + unsigned long base; + + if (REG(UART1_BASE + UART_CR) & CR_UART_EN) + base = UART1_BASE; + else if (REG(UART2_BASE + UART_CR) & CR_UART_EN) + base = UART2_BASE; + else + return; + + while (REG(base + UART_FR) & FR_BUSY); +} + +/* + * nothing to do + */ +#define arch_decomp_setup() +#define arch_decomp_wdog() |